Coincidence

38 Jupiter, Saturn, Uranus, Neptune beyond Beyond the Asteroid Belt we come to the realm of the gas and ice giants, Jupiter, Saturn, Uranus and Neptune. Jupiter is the largest planet, and its magnetic field is the largest object in the solar system. 90 hydrogen, it is nevertheless built around a rocky core like all the giant planets. Metallic hydrogen and then liquid hydrogen surrounds this core. The famous Red Spot is a storm, larger than Earth, which has raged now for hundreds of years. Jupiters moons are numerous and fascinating One, Io, is the most volcanic body in the solar system another, Europa, may have warm oceans of water beneath its icy surface. The next planet is Saturn, with its beautiful system of rings. Saturns structure beneath its clouds is much the same hydrogen and helium mix as Jupiter. A large number of moons have been discovered, the largest of which is Titan, a world the size of Mercury with all the building blocks for life. Beyond Saturn is Uranus, which orbits on its side. Winds gust on the equator at six thousand times the speed of sound. Next is Neptune, like Uranus an ice world of water, ammonia and methane. The largest moon, Triton, has nitrogen ice caps and geysers which spew liquid nitrogen high into the atmosphere. Finally, tiny Pluto, and, beyond that, the primordial swarm of the Kuiper Belt. Then, stretching a third of the way to the nearest star, the sphere of icy debris and comets of the Oort Cloud. Suncentred view from the Earth tilts and eccentricities of the orbits of the outer planets sizes of the outer planets 39